<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>03-19</title>
  <script src="../../js/js/03-19.js" type="text/javascript"></script>
</head>
<body>
<div id="bd">
</div>
<button onclick="cw()">戳我</button>
</body>
</html>
